Axle-lubricator.



PATENTED APR. 21, 1908.

J. THOMI. I AXLE LUBRIGATOR. APPLICATION FILED FEB. 18,1907.

UNITED STATES PATENT OFFICE.

' i'oHN THOMI, 0F BURNS, KANSAS.

AxLE-LUBmcA'roR.

,of Switzerland, residing at .Burns, in the county of Marion, State ofKansas, have invented certain new and useful Improve ments inAXle-Lubricators;' and Ido hereby declare the following to be a full,clear, and exact'desc'ription of the invention, such as will enableothers skilled in the art to which it a pertains to make and use thesame.

he present invention relates to improvements in axle lubricators, and itaims to provide a simple, inexpensive, and eflicient device of thatclass by means of which, when in place, a lubricant may be freel suplied to the skeins on which the vehicle wiee'ls are mounted, withoutnecessitating the removal ofthe latter, the device being particularlyadapted-for use in connection with hard oil or grease.

A further object resides in the provision of a lubricating device inwhich the tube,

through which the grease is forced by the usual com ression cap, servesnot only as a duct for th for preventing rotation of the spindle on theaxle, acting, in this latter manner, as a key or s line.'

T1 e invention further consists in the construction, combination, andarrangements of parts, all as hereinafter more fully described,specifically claimed, and illustrated -in the I accompanying drawings,in which like parts are" designated by corresponding reference numeralsin the several views.

of the said drawings-Figure 1 is a longitudinal section through theimproved skein. Fig, 2 is a perspective view of the oil tube.

. Fig. 3 is a perspective view of the axle, showing 13, through whichthe lubricant is forced,-

'ing the groove formed therein. I

Referring more particularly to the drawings, the reference numeral 7designates the skein in the boreof which is fitted the reduced end 8 oftheaxle 9, the skeinbeing provided with an opening through which extends the stem 10 of an oil-cup 11, carrying the usual compression-cap12; The stem of the oil-cup is provided with a central openand it\isprovided in addition with a second opening 14, in which the upturned end15 of an oil-tube 16 is fitted, the opposite end 17 of the oil-tubeextending through an opening 18 formed through the skein. The oil-tubemay be formed entirely independent of the skein, its end 17 beingretained in the skein e lubricant but also as a means Patentedepril 21,190s.

opening by any preferred means, or, if desired, the skein and oil-tubemaybe formed from a single casting.

As shown in Fig. 2, both ends of the oil tube are completely-closed,while the upper surface thereof between the ends 15 and 17 is providedwith a longitudinal groove 19, forming a duct, through which thelubricant is forced when the coin ression-cap is tightened in theoil-cup. e innermost end of the duct, so formed, is disposed directlybeneath and in close proximity to the lower end of the opening 13 in theoil-cup, so that said duct and opening form a practically continuouschannel. The skein is provided with a series of openings 20formedtherethrough directly above the oil-tube, thus serving asoutlet'ports for the lubricant.

From the foregoing, it will be ap arent that when the corn ression -capis tig tened or moved downwar y in the oil-cu t'he lubrican-t containedin the latter will be forced through the opening 13 and duct beunderstood, however, as above stated, that the present invention isadapted espe, cially for use in connection with hart oil or gfiease, sothat there will be no tendency of t e lubricant to be expressed through.the outlet ports unless the'com ression-eap is positively tightened inthe oi -cup. The in vention, therefore, differs from lubricating devicesin which a liquid lubricant is used, since, in the latter instance,there would be a tendency of the lubricant to flow continuously from theoil-cup and out through the ports, thus rendering the device uselessand. defeating its purpose. I

As shown in Fig. 3, the tapered end of the axle is provided with alongitudinal roove 16, and finally through the outlet ports 20. it is toter, in this way, acts similarly to a feather or s line, and thus servesto prevent any rotation of the skein upon the axle, it being un-,derstood that the metal from which the oiltube is constructed hassuflicient strength to serve such purpose.

What is claimed, is

1. The combination of a bored skein provided with an outlet port andwith an opening located adjacent said ort; an oil-cup having its steinfitted i-nsaid o ening, said stern being provided with an out et ort andwith an opening located adjace t t 1e same; an axle fitted within theskein re and provided witlra longitudinal groove; and an oiland oil-cup,

.rectly beneath the outlet ports in the skein turned, one of said endsbeing secured in the opening in the. oil-cup stem and the opposite endin the other opening in the skein to retain the tube in place andprevent rotating of the skein with respect to the axle, said tube havinga longitudinal channel formed in its ulpper face directly beneath theports in the s groove and provided 1n its upper face ditubefitted withinsaid with a channel formed said tube having its opposite ends upturned,one of said ends being fitted in the'opening in,,t'he oil-cup stem andthe other end being positively secured to the skein, to retain the tubein place and prevent rotation of the skein with respect to the axle.

2. The combination of a bored skein provided with aseri'es of outletorts and with a pair of openings located a jacent the end ports of saidseries; an oil-cup having its stem fitted in one of said 0 enings, saidstern being provided with an out et port and with a I ture, in presenceof two witnesses. separate opening adjacent the same; a lon- JOHN THOMI.gitudinally-grooved axle fitted within the I skein bore; an oil-tubefitte'd' Within saidl groove and having its opposite ends upfl beneaththe port in the oil-cup stem; and a compression cap calried by forcingthe lubricant therein through said cup portand channel and out throughsaid skein ports.

Witnesses:

HENRY SPALLINGER, JOHN F. FREEMAN.

ein, one end of said channel lying directly said oil-cup, for

In testimony whereof, I affix my signas.

